It is necessary to the happiness of man, that he be mentally faithful to himself. Infidelity does not consist in believing, or in disbelieving; it consists in professing to believe what he does not believe.

Authentication Score 3

Original Citation

Paine, Thomas. The Age of Reason, Part I. London: Joel Barlow, 1794.

Current Citation

Paine, Thomas. "The Age of Reason, Being an Investigation of True and Fabulous Theology (1794)." Selected Writings of Thomas Paine, edited by Ian Shapiro and Jane E. Calvert. Yale University Press, 2014.